vitamin C
noun [ U ] chemistry, biology uk/ˌvɪt.ə.mɪn ˈsiː/ us/ˌvaɪ.t̬ə.mɪn ˈsiː/
维生素C
a vitamin found in foods such as citrus fruit, green vegetables with a lot of leaves, tomatoes, and potatoes. It is important for healthy bones, joints, teeth, and gums (= the part of the mouth from which the teeth grow), and for fighting infection.
Synonym: ascorbic acid